Incomplete. Not perfect; wanting some of its parts.
Incrassate. Thickened.
Incumbent. Resting or leaning upon; applied to the embryo when the radicle is folded down upon the back of the cotyledons.
Incurved. Bent inwards. Indefinite. (1.) Variable in number or very numerous, not easily counted. (2.) An inflorescence not definitely terminated, but continuous with the axis, the lower or marginal flowers being the first to open.
Indehiscent. Not opening regularly by valves or otherwise.
Indigenous. Native to the country; not introduced.
Indumentum. Any covering, such as hairiness, &c.
Induplicate. Having the margins folded inwards.
Indurated. Hardened.
Indusium. (1.) In ferns, an outgrowth of the epidermis covering the sorus. (2.) A cup-shaped membrane or ring of collecting hairs below the stigma, usually well developed in the Goodeniaceæ.
Indusiate. Possessing an indusium.
Inferior. Growing below some other organ, as an inferior calyx grows below the ovary, or an inferior ovary appears to grow below the adnate calyx.
Inflated. Swollen; bladdery.
Inflexed. Bent abruptly inwards.
Inflorescence. (1.) The flowering portion of a plant. (2.) The manner in which the flowers are arranged on the floral axis.
Infundibuliform. Funnel-shaped.
Innate. Borne on the apex of a support, as an anther fixed on the apex of a filament.
Inserted. Attached to or growing upon.
Insertion. The place or mode of attachment of an organ.
Internode. That part of a stem between the nodes.
Interpetiolar. Between the petioles; also applied to the coalesced stipules of two opposite leaves.
Introrse. Turned towards the axis; often applied to anthers which open towards the centre of the flower.
Involucel. An inner or secondary involucre; that which surrounds a secondary or partial umbel.
Involucellate. Having a secondary involucre.
Involucrate. Having an involucre.
Involucre. A ring of bracts surrounding several flowers, as in the heads of Compositæ or the umbels of Umbelliferæ; also sometimes apphed to the indusium of ferns.
Involute. Having the margins rolled inwards.
Irregular. Not regular; unsymmetrical.
Isomerous. Equal in number; applied to flowers having an equal number of parts in the successive whorls, as of sepals, petals, stamens, &c.
Keel. (1.) A central dorsal ridge resembling the keel of a boat. (2.) The two cohering anterior petals of a papilionaceous flower.
Labellum. The third petal of an orchid, by a twist of the ovary placed in front of the flower, and usually very different in form from the remainder.
Labiate. Lipped; applied to an irregular calyx or corolla which is unequally divided into two parts or lips.
Lacerate. Irregularly torn or cleft.
Laciniate. Cut into narrow slender teeth or lobes.
Lactescent. Yielding milky juice.
Lacunose. When the surface is covered with depressions or perforated with holes.
Lacustrine. Inhabiting lakes or ponds.
